Exact Solutions for Gravity-Segregated Flows in Porous Media

The review is devoted to exact analytical solutions for quasi-2D gravity segregated flows or gravity currents in subterranean porous formations. The problems under consideration are quasi-linear. The driving forces are two components of the buoyancy—one exerting the bulk of the light fluid and one d...

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Main Authors: Pavel Bedrikovetsky, Sara Borazjani
Format: Article
Language:English
Published: MDPI AG 2022-07-01
Series:Mathematics
Subjects:
Online Access:https://www.mdpi.com/2227-7390/10/14/2455
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author Pavel Bedrikovetsky
Sara Borazjani
author_facet Pavel Bedrikovetsky
Sara Borazjani
author_sort Pavel Bedrikovetsky
collection DOAJ
description The review is devoted to exact analytical solutions for quasi-2D gravity segregated flows or gravity currents in subterranean porous formations. The problems under consideration are quasi-linear. The driving forces are two components of the buoyancy—one exerting the bulk of the light fluid and one due to the curvilinearity of the interface between the fluids. In the case of homogeneous formation or where the seal slope is negligible, the transport equation is parabolic and allows for a wide set of self-similar solutions. In a large-scale approximation of the buoyancy domination, the governing equation is hyperbolic; the method of characteristics allows for a detailed analytical description of gravity current propagation with final accumulation in the geological trap. Analytical models for leakage via the caprock seal are also discussed. The work was completed by formulating some unsolved problems in segregated flows in porous media.
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spelling doaj.art-6836019fbcf34946aaa3a6aa33dfbdab2023-12-03T11:53:45ZengMDPI AGMathematics2227-73902022-07-011014245510.3390/math10142455Exact Solutions for Gravity-Segregated Flows in Porous MediaPavel Bedrikovetsky0Sara Borazjani1Australian School of Petroleum and Energy Resources, The University of Adelaide, Adelaide, SA 5000, AustraliaAustralian School of Petroleum and Energy Resources, The University of Adelaide, Adelaide, SA 5000, AustraliaThe review is devoted to exact analytical solutions for quasi-2D gravity segregated flows or gravity currents in subterranean porous formations. The problems under consideration are quasi-linear. The driving forces are two components of the buoyancy—one exerting the bulk of the light fluid and one due to the curvilinearity of the interface between the fluids. In the case of homogeneous formation or where the seal slope is negligible, the transport equation is parabolic and allows for a wide set of self-similar solutions. In a large-scale approximation of the buoyancy domination, the governing equation is hyperbolic; the method of characteristics allows for a detailed analytical description of gravity current propagation with final accumulation in the geological trap. Analytical models for leakage via the caprock seal are also discussed. The work was completed by formulating some unsolved problems in segregated flows in porous media.https://www.mdpi.com/2227-7390/10/14/2455exact solutionsgravity segregated flowporous mediaself-similar solution
spellingShingle Pavel Bedrikovetsky
Sara Borazjani
Exact Solutions for Gravity-Segregated Flows in Porous Media
Mathematics
exact solutions
gravity segregated flow
porous media
self-similar solution
title Exact Solutions for Gravity-Segregated Flows in Porous Media
title_full Exact Solutions for Gravity-Segregated Flows in Porous Media
title_fullStr Exact Solutions for Gravity-Segregated Flows in Porous Media
title_full_unstemmed Exact Solutions for Gravity-Segregated Flows in Porous Media
title_short Exact Solutions for Gravity-Segregated Flows in Porous Media
title_sort exact solutions for gravity segregated flows in porous media
topic exact solutions
gravity segregated flow
porous media
self-similar solution
url https://www.mdpi.com/2227-7390/10/14/2455
work_keys_str_mv AT pavelbedrikovetsky exactsolutionsforgravitysegregatedflowsinporousmedia
AT saraborazjani exactsolutionsforgravitysegregatedflowsinporousmedia